diff --git a/color.go b/color.go
index 43c50a9..8638e94 100644
--- a/color.go
+++ b/color.go
@@ -6,7 +6,8 @@ import (
 
 var (
 	Transparent tcell.Color = tcell.ColorDefault
-	themesName              = []string{"Gruvbox", "Nord"}
+	ThemesName              = []string{"Gruvbox", "Nord"}
+	Palette                 = []string{"red", "green", "yellow", "blue", "purple", "cyan"}
 	Themes                  = map[string]map[string]tcell.Color{
 		"Gruvbox": {
 			"bg":     tcell.NewHexColor(0x282828),
diff --git a/main.go b/main.go
index a617b9b..f7b918c 100644
--- a/main.go
+++ b/main.go
@@ -17,7 +17,9 @@ var (
 	langCycle           = NewUICycle(srcLangDropDown, dstLangDropDown)
 	themeDropDown       = tview.NewDropDown()
 	transparentDropDown = tview.NewDropDown()
-	styleCycle          = NewUICycle(themeDropDown, transparentDropDown)
+	srcBorderDropDown   = tview.NewDropDown()
+	dstBorderDropDown   = tview.NewDropDown()
+	styleCycle          = NewUICycle(themeDropDown, transparentDropDown, srcBorderDropDown, dstBorderDropDown)
 	langButton          = tview.NewButton("(1)Language")
 	styleButton         = tview.NewButton("(2)Style")
 	menuButton          = tview.NewButton("(3)KeyMap")
diff --git a/ui.go b/ui.go
index ae6aade..f759167 100644
--- a/ui.go
+++ b/ui.go
@@ -71,6 +71,20 @@ func updateBackgroundColor() {
 		tcell.StyleDefault.
 			Background(window.src.selectedColor).
 			Foreground(window.src.prefixColor))
+	srcBorderDropDown.SetBackgroundColor(window.src.backgroundColor)
+	srcBorderDropDown.SetListStyles(tcell.StyleDefault.
+		Background(window.src.backgroundColor).
+		Foreground(window.src.foregroundColor),
+		tcell.StyleDefault.
+			Background(window.src.selectedColor).
+			Foreground(window.src.prefixColor))
+	dstBorderDropDown.SetBackgroundColor(window.dst.backgroundColor)
+	dstBorderDropDown.SetListStyles(tcell.StyleDefault.
+		Background(window.src.backgroundColor).
+		Foreground(window.src.foregroundColor),
+		tcell.StyleDefault.
+			Background(window.src.selectedColor).
+			Foreground(window.src.prefixColor))
 }
 
 func updateBorderColor() {
@@ -85,6 +99,10 @@ func updateBorderColor() {
 		SetTitleColor(window.src.borderColor)
 	dstLangDropDown.SetBorderColor(window.dst.borderColor).
 		SetTitleColor(window.dst.borderColor)
+	srcBorderDropDown.SetBorderColor(window.src.borderColor).
+		SetTitleColor(window.src.borderColor)
+	dstBorderDropDown.SetBorderColor(window.dst.borderColor).
+		SetTitleColor(window.dst.borderColor)
 }
 
 func updateNonConfigColor() {
@@ -109,6 +127,14 @@ func updateNonConfigColor() {
 	transparentDropDown.SetFieldBackgroundColor(window.src.selectedColor).
 		SetFieldTextColor(window.src.foregroundColor).
 		SetPrefixTextColor(window.src.prefixColor)
+	srcBorderDropDown.SetLabelColor(window.src.labelColor)
+	srcBorderDropDown.SetFieldBackgroundColor(window.src.selectedColor).
+		SetFieldTextColor(window.src.foregroundColor).
+		SetPrefixTextColor(window.src.prefixColor)
+	dstBorderDropDown.SetLabelColor(window.src.labelColor)
+	dstBorderDropDown.SetFieldBackgroundColor(window.src.selectedColor).
+		SetFieldTextColor(window.src.foregroundColor).
+		SetPrefixTextColor(window.src.prefixColor)
 
 	// button
 	langButton.SetLabelColor(window.src.foregroundColor).
@@ -163,13 +189,19 @@ func uiInit() {
 	dstLangDropDown.SetBorder(true)
 	dstLangDropDown.SetOptions(Lang, nil)
 	themeDropDown.SetLabel("Theme: ").
-		SetOptions(themesName, nil).
-		SetCurrentOption(IndexOf(theme, themesName))
+		SetOptions(ThemesName, nil).
+		SetCurrentOption(IndexOf(theme, ThemesName))
 	transparentDropDown.SetLabel("Transparent: ").
 		SetOptions([]string{"true", "false"}, nil).
 		SetCurrentOption(
 			IndexOf(strconv.FormatBool(transparent),
 				[]string{"true", "false"}))
+	srcBorderDropDown.SetOptions(Palette, nil)
+	srcBorderDropDown.SetBorder(true).
+		SetTitle("Source")
+	dstBorderDropDown.SetOptions(Palette, nil)
+	dstBorderDropDown.SetBorder(true).
+		SetTitle("Destination")
 
 	// window
 	translateWindow.SetDirection(tview.FlexColumn).
@@ -190,7 +222,13 @@ func uiInit() {
 			AddItem(nil, 0, 1, false).
 			AddItem(tview.NewFlex().SetDirection(tview.FlexRow).
 				AddItem(themeDropDown, 1, 1, true).
-				AddItem(transparentDropDown, 1, 1, false), 20, 1, true).
+				AddItem(transparentDropDown, 1, 1, false).
+				AddItem(tview.NewFlex().SetDirection(tview.FlexColumn).
+					AddItem(nil, 0, 1, false).
+					AddItem(srcBorderDropDown, 32, 1, false).
+					AddItem(dstBorderDropDown, 32, 1, false).
+					AddItem(nil, 0, 1, false), 0, 1, false),
+				20, 1, true).
 			AddItem(nil, 0, 1, false), 20, 1, true).
 		AddItem(attachButton(), 1, 1, false).
 		AddItem(nil, 0, 1, false)
@@ -211,6 +249,8 @@ func uiInit() {
 		SetSelectedFunc(themeSelected)
 	transparentDropDown.SetDoneFunc(styleDropDownHandler).
 		SetSelectedFunc(transparentSelected)
+	srcBorderDropDown.SetDoneFunc(styleDropDownHandler)
+	dstBorderDropDown.SetDoneFunc(styleDropDownHandler)
 	langButton.SetSelectedFunc(func() {
 		mainPage.HidePage("stylePage")
 		mainPage.ShowPage("langPage")